EP0936005B1 - Dispositif de cambrage de fils métalliques - Google Patents
Dispositif de cambrage de fils métalliques Download PDFInfo
- Publication number
- EP0936005B1 EP0936005B1 EP98440013A EP98440013A EP0936005B1 EP 0936005 B1 EP0936005 B1 EP 0936005B1 EP 98440013 A EP98440013 A EP 98440013A EP 98440013 A EP98440013 A EP 98440013A EP 0936005 B1 EP0936005 B1 EP 0936005B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotation
- fingers
- bending
- axis
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/06—Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form
- B21D11/07—Making serpentine-shaped articles by bending essentially in one plane
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F1/00—Bending wire other than coiling; Straightening wire
Definitions
- the subject of the present invention is a cambering device for metallic wires.
- the wire from a spool or a boot passes through a rectifier and then is supported by a system which pushes it by the desired length towards the tool bending, which generally includes a bending head, movable in rotation along the axis of the wire, comprising a fixed finger holding the wire and a finger provided with a roller, capable of rotate concentrically with the axis of said fixed finger, according to a determined angular deviation, in order to arch the wire.
- the change of direction of curvature is realized, since the wire cannot rotate axially, by changing the starting position fingers, which is obtained either by rotating of the bending head, either by reversing the position of the fingers by their retraction in the bending head.
- this device comprises in a head of mobile bending in rotation around the axis of the wire, of a share two parallel trees, between the ends of which passes transversely, externally to said head of bending, the wire to be bent, said shafts being connected by through a room with two cogwheels identical secured to each other not concentrically by their sides, said shafts each passing axially and jointly one of said gear wheels; on the other hand, for each of said trees, an arc guide path of circle, the guide path from one shaft being coaxial to the other tree; and on the other hand still a cog wheel susceptible to be rotated in one direction or the other, and positioned equidistant from said trees so as to mesh on said cogwheels.
- Shafts are slidably mounted in the guideways by means of pads in which they are mounted free rotation, said pads being in the form of a segment ring.
- each of the fingers can be rotated bending finger or holding finger, allows to pass from one direction of curvature to another without requiring retraction, and limiting the rotation time of the bending head.
- this device lacks reliability over time, mainly due to wear of the sliding shoes, resulting in clearances important which cause inaccuracies in the guidance, which goes against the desired goal namely speed execution.
- the object of the present invention is to propose a device for bending of metal wires to remedy this disadvantage.
- the wire bending device object of the present invention is of the type comprising a bending head movable in rotation about the axis of the wire and comprising two fingers between which said metal wire passes, each said fingers being capable of being rotated concentrically around the other which is then fixed, and it essentially characterized in that said fingers are carried by the end of a tree likely to be led in rotation along one or the other of the axes of said fingers, and carried by first rotating guide means, one of which is concentric with one of said axes while the other is concentric to the other of said axes, each of said first means for guiding in rotation being carried by a second means guiding in rotation, concentric with that of said axes which is not concentric with the first guide means in rotation that it carries.
- the tree is also carried on the side comprising the fingers, by a guidance system similar to that which carries it on the other side.
- the rotating guide means consist in bearings.
- the shaft carries two pinions each coaxial with the axis of one of the fingers, and able to mesh on a wheel toothed carried by a shaft parallel to the axes of said fingers and equidistant from them, and likely to be rotated one way or the other.
- the bending device according to the invention is of a more reliable operation than that of existing devices, and in particular that of document FR-A-2,744,941, by authorizing a better guidance.
- This bending head has two flanges 1 and 2 joined together via two spacers 3.
- the flanges 1 and 2 are crossed perpendicularly by a shaft 4 which carries at its end 40, on the side of the flange 1, two bending fingers 41 and 42 parallel, between which passes a wire 5 to be bent.
- the end 43 of the shaft 4, opposite the end 40, is mounted in rotation concentrically to the axis YY 'in a flank 20 by through a bearing 21, while the flank 20 is itself mounted in rotation, concentrically to the axis XX ', in the flange 2 by means of a bearing 22.
- the shaft 4 is also mounted in rotation, concentrically with axis XX ', in a sidewall 10 by means of a bearing 11, while the sidewall 10 is itself mounted in rotation, concentrically to the axis YY ', in the flange 1 by through a bearing 12.
- This assembly makes it possible to rotate either the finger 41 concentrically to the axis YY 'of finger 42 which then rotates axially, i.e. finger 42 concentrically with axis XX 'of the finger 41 which then rotates axially.
- the shaft 4 carries, between the flanges 1 and 2, two identical pinions 44 and 45, which are integral with it, the pinion 44 being coaxial with the axis XX 'of the finger 41, while the pinion 45 is coaxial with the axis YY 'of the finger 42.
- the bending head also includes a toothed wheel 6 carried by a tree, not visible, parallel to the axes XX 'and YY' and equidistant from these, mounted in rotation in the flanges 1 and 2, and driven in rotation by a stepping motor, no shown, the toothed wheel 6 being able to mesh on one either of gables 44 and 45.
- the bending of a wire 5 is similar to that achieved by means of the device described in document FR-A-2,744,941, namely that, as can be seen in Figure 2, the rotation of the toothed wheel 6 in the direction of arrow A can only lead to the rotation of the pinion 44 along its XX 'in the direction of the arrow B, while the pinion 45 rotates around the axis XX 'resulting in the rotation of the finger 42 around of the finger 41 and the bending of the wire 5 around it.
- the shaft 4 is rotatably mounted in a sidewall 70 concentric to the axis YY ' via a bearing 71, while the side 70 is mounted in rotation concentrically to the axis XX 'by by means of a bearing 72 in a solid plate 7 flange 1.
- the fingers 41 and 42 are preferably each provided with a roller in free rotation, not shown, and that the bending of metallic wires of different diameters is possible using rollers of suitable diameters, with however an influence on the radius of curvature.
- the distance between the bending fingers is variable, it is chosen according to the diameter of the wire and the radius of curvature longed for.
- cambering device also allows the bending of tubes.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wire Processing (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Description
- la figure 1 représente une vue schématique en coupe d'un dispositif de cambrage de fils métalliques selon l'invention ;
- la figure 2 représente une vue schématique en plan du même dispositif.
Claims (5)
- Dispositif de cambrage de fils métalliques du type comprenant une tête de cambrage mobile en rotation autour de l'axe du fil (5) et comportant deux doigts (41, 42) entre lesquels passe ledit fil métallique (5), chacun desdits doigts (41, 42) étant susceptible d'être mené en rotation concentriquement autour de l'autre qui est alors fixe, et il se caractérise en ce que lesdits doigts (41, 42) sont portés par le bout (40) d'un arbre (4) susceptible d'être mené en rotation selon l'un ou l'autre des axes (XX', YY') desdits doigts (41, 42), et porté par des premiers moyens de guidage en rotation (11, 21) dont l'un est concentrique à l'un desdits axes tandis que l'autre est concentrique à l'autre desdits axes, chacun desdits premiers moyens de guidage en rotation (11, 21) étant porté par un second moyen de guidage en rotation (12, 22), concentrique à celui desdits axes (XX', YY') auquel n'est pas concentrique le premier moyen de guidage en rotation (11, 21) qu'il porte.
- Dispositif selon la revendication 1, caractérisé en ce que l'arbre (4) est également porté du côté comportant les doigts (41, 42), par un système de guidage (71, 70, 72) analogue à celui (21, 20, 22) qui le porte de l'autre côté.
- Dispositif selon la revendication 1 ou la revendication 2, caractérisé en ce que les moyens de guidage en rotation consistent en des roulements(11, 12, 21, 22, 71, 72).
- Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que l'arbre (4) porte deux pignons (44, 45) chacun coaxial à l'axe d'un des doigts (41, 42), et aptes à s'engrener sur une roue dentée (6) par un arbre parallèle aux axes desdits doigts et équidistant de ceux-ci, et susceptible d'être menée en rotation dans un sens ou dans l'autre.
- Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que les doigts (41, 42) sont chacun munis d'un galet en libre rotation.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98440013A EP0936005B1 (fr) | 1998-02-04 | 1998-02-04 | Dispositif de cambrage de fils métalliques |
DE69805273T DE69805273D1 (de) | 1998-02-04 | 1998-02-04 | Vorrichtung zum Biegen von Metalldrähten |
AT98440013T ATE217220T1 (de) | 1998-02-04 | 1998-02-04 | Vorrichtung zum biegen von metalldrähten |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98440013A EP0936005B1 (fr) | 1998-02-04 | 1998-02-04 | Dispositif de cambrage de fils métalliques |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0936005A1 EP0936005A1 (fr) | 1999-08-18 |
EP0936005B1 true EP0936005B1 (fr) | 2002-05-08 |
Family
ID=8235656
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98440013A Expired - Lifetime EP0936005B1 (fr) | 1998-02-04 | 1998-02-04 | Dispositif de cambrage de fils métalliques |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0936005B1 (fr) |
AT (1) | ATE217220T1 (fr) |
DE (1) | DE69805273D1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2805188B1 (fr) * | 2000-02-21 | 2002-06-07 | Latour Et Fils Sa | Dispositif de cambrage de fil |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2106202C3 (de) * | 1971-02-10 | 1975-03-20 | Golownoje Spezial'noje Konstruktorskoje Bjuro Po Mechanisazii Proiswodstwa Energetitscheskogo Oborudowanija, Rostow-Na-Donu (Sowjetunion) | Maschine zum Biegen von Rohrschlangen |
DE2215490A1 (de) * | 1972-03-29 | 1973-10-04 | Peddinghaus Carl Ullrich Dr | Biegemaschine fuer insbesondere betonstahlstaebe |
JPS6160218A (ja) * | 1984-08-30 | 1986-03-27 | Sanden Corp | 蛇行パイプ製造装置 |
FR2685228B1 (fr) * | 1991-12-23 | 1995-08-11 | Automation Franc | Machine a cintrer un element du type tige, barre, tube, fil ou analogue. |
FR2744941B1 (fr) * | 1996-02-16 | 1998-05-15 | Scdc Sarl | Procede et dispositif de cambrage de fils metalliques |
-
1998
- 1998-02-04 DE DE69805273T patent/DE69805273D1/de not_active Expired - Lifetime
- 1998-02-04 AT AT98440013T patent/ATE217220T1/de not_active IP Right Cessation
- 1998-02-04 EP EP98440013A patent/EP0936005B1/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0936005A1 (fr) | 1999-08-18 |
ATE217220T1 (de) | 2002-05-15 |
DE69805273D1 (de) | 2002-06-13 |
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